If we try to define Kitsch in a few words I would say that we are talking about the industrialization of design and mass production, where excessive emotions and melodrama are the focus. Humor also has a role in this excessiveness as it pleases a certain amount of people. And it can also be considered as a contrast of beauty, but how can we consider the ugly? And then we start thinking about what could be considered of good or bad taste.
It is definitely an over ornamentation. If you go back to the idea, that ornament is crime, it is something that modernism made us think, no? You have this idea that architecture or design should be about functionality, pragmatism, hygiene, pure form, geometry and so on is on. And if you see that this kind of ornamentation is done just for the pleasure of it(and I think pleasure is a very funny word when you talk about kitsch, and it's something that has todo a lot with kitsch) and if we think about modernism as something that dictated the design, I think you have to be straight, regular, normed. So, we tend to follow the norm and have to follow standards for production and so on. It has to be hygienic, it has to be simple, it to respect a certain geometry and it has to be pure. Then kitsch doesn't make any sense. And you could categorize it as ugly because then you could say: “okay, what is beautiful is what is simple and functional and pragmatic, and what is ugly is what is not”.
And so basically the idea is that it is a contrast that we create ourselves. It's not natural.And I think that maybe this idea of kitsch and ugly is connected because of that idea, that ornamentation is a huge issue, it is a huge problem. But ornamentation is not a problem, it is just that we defined it like that because we think that modernity and modernism are good. But is ornamentation the problem? Or, as Adolf Loos says “decoration, is a crime”? I don't think so.